CN215813637U - Reinforced liquid crystal display with heat-insulation and vibration-isolation structure - Google Patents
Reinforced liquid crystal display with heat-insulation and vibration-isolation structure Download PDFInfo
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- CN215813637U CN215813637U CN202122281336.8U CN202122281336U CN215813637U CN 215813637 U CN215813637 U CN 215813637U CN 202122281336 U CN202122281336 U CN 202122281336U CN 215813637 U CN215813637 U CN 215813637U
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Abstract
The utility model discloses a reinforced liquid crystal display with a heat-insulation and vibration-isolation structure, which comprises a metal frame structure, wherein a first composite heat-insulation material is arranged inside the metal frame structure, the outer wall of the first composite heat-insulation material is fixedly connected with the metal frame structure, a second composite heat-insulation material is arranged inside the metal frame structure on one side of the first composite heat-insulation material, a display module is arranged inside the metal frame structure above the second composite heat-insulation material, the outer wall of the display module is fixedly connected with the first composite heat-insulation material, front protective glass is arranged inside the display module, and a liquid crystal glass plate is arranged inside the display module below the front protective glass. The utility model not only realizes the high-efficiency heat preservation and vibration isolation performance of the liquid crystal display, but also can effectively reduce the heating power of the liquid crystal display in a low-temperature environment, and solves the problem that the yellow spots, white spots, black spots and the like of the liquid crystal display in a strong vibration environment affect the display quality.
Description
Technical Field
The utility model relates to a liquid crystal display technology, in particular to a reinforced liquid crystal display used in a low-temperature and strong-vibration environment. In particular to a liquid crystal display which has the heating function and the capability of reducing the environmental vibration impact strength and can meet the requirements of low-temperature and strong-vibration environments, and the heating power of a liquid crystal display heater under the low-temperature environment can be greatly reduced by applying a heat-insulating material.
Background
As is well known, in the present day of battlefield digitization and informatization popularization, a liquid crystal display has the advantages of light weight, thinness, low power consumption, rich display colors, low price and complete product specification series, and various display parameters in a normal temperature environment all meet the display requirements of industries such as a computer display terminal, a video monitoring display terminal, a radar signal display terminal and industrial control display. The liquid crystal display has the defects that the fluidity is poor at low temperature due to the 'liquid crystal' working medium in the low-temperature environment, the liquid crystal molecules are slow in twisting motion, and displayed images have the phenomena of trailing, moving image blurring and the like. Therefore, the lcd used in low temperature environment needs to be provided with a heater to heat the display glass panel of the lcd. In order to improve the heating efficiency of the heater to the liquid crystal display screen, a plurality of measures are provided technically, most of the measures are to use a transparent ITO conductive film to make the heater, a transparent ITO glass plate is tightly attached to the back or the front of the liquid crystal display screen to make the heater, an air layer is arranged in the middle of the transparent ITO glass plate or thin transparent adhesive glue (0.5-2 mm in thickness) is used, the efficiency of the heater has larger deviation, and the heating efficiency of the transparent ITO glass plate adhered to the back of the liquid crystal display screen by the transparent adhesive glue is higher. The transparent ITO conductive film is directly manufactured inside the two liquid crystal glass plates, the heating efficiency of clinging to the liquid crystal layer is the highest scheme, the scheme has the cost that special treatment is needed in the design and production processes of the liquid crystal display panel, the design and production cost and the technical difficulty are increased, and the liquid crystal display panel belongs to a customized product. Compared with the existing liquid crystal display applied to low-temperature and strong-vibration environments by a 'reinforcing' method, the liquid crystal display is in a common industrial-grade commercial shelf product mode, and the cost is very high. Therefore, at present, the reinforced liquid crystal display in the application occasions of low temperature and strong vibration environment is mostly manufactured by a 'reinforcing' method.
Another disadvantage of the lcd (especially, the lcd with a larger size) is that under the vibration environment, the display image may have yellow spots, black spots, blue spots, white spots, etc. in the white field, which affects the display quality. The phenomenon is that the liquid crystal display panel is formed by bonding and sealing two very thin (about 0.5-0.7 mm) narrow frames around, the middle gap (the box thickness of the liquid crystal panel in the liquid crystal industry) is about 3-6 um, under a strong vibration environment, two very thin pieces of liquid crystal panel glass can generate inconsistent vibration displacement to destroy the box thickness stability between the two pieces of glass, the principle of liquid crystal display can be known, after the box thickness of the liquid crystal display panel changes, the closed state cut-off performance and the on state transmission performance of the liquid crystal light valve can be destroyed, the box thickness of the liquid crystal display panel produced in a factory is adjusted and optimized, the best display performance of the liquid crystal display can be realized, and the best closed state cut-off performance and the on state transmission performance of the light valve can be realized. Meanwhile, for visible light with different wavelengths, the influence of small change of the box thickness on blue light with short wavelength is relatively larger, and the phenomenon of yellow spots of white field pictures appears because the blue light transmittance is reduced and the displayed white field lacks blue light, so the white field looks yellowish. The black spot of the white field picture is caused by that the local box thickness of the liquid crystal display screen is changed too much, the light transmittance of all red, green and blue pixels is influenced, and compared with other areas, the light transmittance of the display screen in the area is lowered, the brightness is lowered, and the display screen looks like a black spot.
The blue spot phenomenon of the black field picture is caused by that the local box thickness of the liquid crystal light valve is changed due to vibration, the closed-state cut-off performance is deteriorated, and blue light leaks firstly, so that the picture looks bluish. The white spots in the black field are caused by that the local box thickness of the liquid crystal display screen is changed too much at the moment, the closed-state cut-off performance of all red, green and blue pixels is influenced, and compared with other areas, the area of the liquid crystal display screen has light leakage, and the backlight cannot be completely closed, so that the liquid crystal display screen looks like white spots.
The measure for solving the problem of poor display quality of the liquid crystal display in the strong vibration environment is generally to perform the rigidity strengthening of the display module on the liquid crystal display screen, so that the influence of external vibration on the liquid crystal display screen can be reduced. And the vibration isolation is further carried out on the reinforced liquid crystal display module, so that the influence of strong vibration environment on the display quality of the liquid crystal display can be better reduced.
This patent utilizes insulation material, the structure of special preparation and design both can improve the heating effect of liquid crystal display module, reduces heating power relatively, can keep apart external vibration again, improves LCD's under the strong vibration environment display quality.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a reinforced liquid crystal display with a heat-insulation and vibration-isolation structure, and aims to solve the problem that the reinforced liquid crystal display is inconvenient for the efficient heat-insulation and vibration-isolation performance of the display in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: including metal frame construction, metal frame construction's inside is equipped with first composite insulation material, and first composite insulation material's outer wall and metal frame construction fixed connection, the inside second composite insulation material that is equipped with of metal frame construction of first composite insulation material one side, the inside display module that is equipped with of metal frame construction of second composite insulation material top, and display module's outer wall and first composite insulation material fixed connection, display module's inside is equipped with preceding protection glass, the inside liquid crystal glazing board that is equipped with of display module of preceding protection glass below.
Preferably, one side of the liquid crystal glass plate close to the front protective glass is provided with an optical bonding glue, one side of the optical bonding glue is fixedly connected with the liquid crystal glass plate, and the other side of the optical bonding glue is fixedly connected with the front protective glass.
Preferably, a backlight assembly is arranged inside the display module on one side of the liquid crystal glass plate, and the outer wall of the backlight assembly is connected with the display module.
Preferably, the bottom end of the liquid crystal glass plate above the backlight assembly is provided with an adhesive filling material, and the top end of the adhesive filling material is connected with the liquid crystal glass plate.
Preferably, the bottom end of the bonding filling material is provided with a laminated partition plate and bonding glue, the top ends of the laminated partition plate and the bonding glue are connected with the bonding filling material, and the bottom ends of the laminated partition plate and the bonding glue are connected with the backlight assembly.
Preferably, a metal frame is arranged inside the display module, and the outer wall of the metal frame is connected with the adhesive filling material, the laminated partition plate and the adhesive glue.
Compared with the prior art, the utility model has the beneficial effects that: the reinforced liquid crystal display not only realizes the high-efficiency heat preservation and vibration isolation performance of the reinforced liquid crystal display, can effectively reduce the heating power of the liquid crystal display in a low-temperature environment, and solves the problem that the display quality is influenced by yellow spots, white spots, black spots and the like of the liquid crystal display in a strong vibration environment;
(1) the periphery of the display module is wrapped by the first composite heat-insulating material and the second composite heat-insulating material, the first composite heat-insulating material and the second composite heat-insulating material are made of composite heat-insulating materials similar to hollow fibers and adhesives or foam, and the composite heat-insulating materials are bonded and fixed with the metal frame structure in a high-thermal-resistance and elastic mode, so that the purposes of heat preservation and vibration isolation are achieved.
(2) The liquid crystal glass plate and the front protective glass inside the display module are pasted and fixed through the optical bonding glue, the rigidity is improved, the side wall of the liquid crystal glass plate is connected with the metal frame through the bonding filling material, the laminated partition plate and the bonding glue, and when the first composite heat-insulating material, the second composite heat-insulating material and the metal frame structure are connected, the first-order resonance frequency of the reinforced liquid crystal display which is fixedly installed is ensured to be less than fifty Hz by adopting the composite heat-insulating material containing aerogel fibers or hollow ceramic beads or hollow glass beads and the foaming bonding glue material thereof.
(3) The liquid crystal display module has the advantages that the sheet-shaped or film-shaped heat insulation material is adopted for heat insulation and firm pasting outside the display module, the heat insulation effect is achieved, the requirements are light, thin and high in heat resistance, the vibration characteristic is not considered, the part of the liquid crystal display module backlight assembly needing high-temperature heat dissipation is pasted by the flexible graphite film, heat is led out, the flexible heat conduction material is used for achieving the efficient heat insulation and vibration isolation performance of the liquid crystal display, the heating power of the liquid crystal display under the low-temperature environment can be effectively reduced, and the problem that the display quality is affected by the vibration yellow spots, white spots, black spots and the like of the liquid crystal display under the strong vibration environment is solved.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic front cross-sectional view of a display module according to the present invention;
fig. 4 is an enlarged schematic view of the structure at B in fig. 3 according to the present invention.
In the figure: 100. a display module; 200. a first composite thermal insulation material; 300. a metal frame structure; 110. front protective glass; 120. a liquid crystal glass plate; 130. optical bonding glue; 140. a backlight assembly; 150. a metal frame; 160. bonding a filling material; 170. a laminated separator and adhesive; 210. a second composite thermal insulation material.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an embodiment of the present invention is shown: a reinforced liquid crystal display with a heat-insulation and vibration-isolation structure comprises a metal frame structure 300, wherein a first composite heat-insulation material 200 is arranged inside the metal frame structure 300, the outer wall of the first composite heat-insulation material 200 is fixedly connected with the metal frame structure 300, a second composite heat-insulation material 210 is arranged inside the metal frame structure 300 on one side of the first composite heat-insulation material 200, a display module 100 is arranged inside the metal frame structure 300 above the second composite heat-insulation material 210, the outer wall of the display module 100 is fixedly connected with the first composite heat-insulation material 200, front protective glass 110 is arranged inside the display module 100, and a liquid crystal glass plate 120 is arranged inside the display module 100 below the front protective glass 110;
when the display module is used, the periphery of the display module 100 is wrapped by the first composite heat-insulating material 200 and the second composite heat-insulating material 210, the first composite heat-insulating material 200 and the second composite heat-insulating material 210 are made of composite heat-insulating materials similar to hollow fibers and adhesives or foam, and the composite heat-insulating materials are fixed with the metal frame structure 300 in a high-thermal-resistance and elastic bonding mode, so that the purposes of heat preservation and vibration isolation are achieved;
an optical bonding adhesive 130 is arranged on one side of the liquid crystal glass plate 120 close to the front protective glass 110, one side of the optical bonding adhesive 130 is fixedly connected with the liquid crystal glass plate 120, the other side of the optical bonding adhesive 130 is fixedly connected with the front protective glass 110, a backlight assembly 140 is arranged inside the display module 100 on one side of the liquid crystal glass plate 120, and the outer wall of the backlight assembly 140 is connected with the display module 100;
the bottom end of the liquid crystal glass plate 120 above the backlight assembly 140 is provided with a bonding filling material 160, the top end of the bonding filling material 160 is connected with the liquid crystal glass plate 120, the bottom end of the bonding filling material 160 is provided with a laminated partition plate and bonding glue 170, the top ends of the laminated partition plate and the bonding glue 170 are connected with the bonding filling material 160, the bottom ends of the laminated partition plate and the bonding glue 170 are connected with the backlight assembly 140, the inside of the display module 100 is provided with a metal frame 150, and the outer wall of the metal frame 150 is connected with the bonding filling material 160, the laminated partition plate and the bonding glue 170;
when the display module 100 is used, the liquid crystal glass plate 120 and the front protective glass 110 inside the display module 100 are adhered and fixed by the optical adhesive 130, the rigidity is improved, the side wall of the liquid crystal glass plate 120 is connected with the metal frame 150 through the adhesive filling material 160, the laminated partition plate and the adhesive 170, the side wall of the backlight assembly 140 is connected with the metal frame 150, the material of the adhesive filling material 160 is adhesive filling material with poor elasticity similar to silica gel, when the first composite heat insulation material 200 and the second composite heat insulation material 210 are connected with the metal frame structure 300, the material containing aerogel fiber or hollow ceramic micro-beads or hollow glass micro-beads and foaming adhesive material thereof is adopted, or the material of hollow air-permeable silica gel foam is directly adopted, the thickness is more than two millimeters, and by selecting the first composite heat insulation material 200 and the second composite heat insulation material 210 with different hardness, rigidity, thickness and contact area, ensuring that the first-order resonance frequency of the fixedly installed reinforced liquid crystal display is less than fifty Hz;
when in use, the display module 100 is adhered firmly by adopting a sheet or film-shaped heat insulation material for heat insulation, which plays a role of heat insulation, requires light, thin and high heat resistance, and does not consider the vibration characteristic, the backlight assembly 140 of the liquid crystal display module needs high-temperature heat radiation, such as an LED backlight lamp strip, a liquid crystal driving COG or COF chip, the positions are not coated with heat insulation materials, special heat dissipation measures are needed, such as flexible graphite film adhesion is adopted, one end of the flexible graphite film is adhered to the LED lamp strip or the chip, the other end of the flexible graphite film is adhered to the outer metal shell to conduct heat out, the flexible graphite film is made of flexible heat conduction materials, for example, the graphite film can transfer heat and does not transfer vibration stress, so that the high-efficiency heat preservation and vibration isolation performance of the liquid crystal display is realized, the heating power of the liquid crystal display in a low-temperature environment can be effectively reduced, and the problem that the display quality is influenced by the yellow spots, white spots, black spots and the like of the liquid crystal display in a strong vibration environment is solved.
When the embodiment of the application is used: firstly, the periphery of a display module 100 is wrapped by a first composite heat-insulating material 200 and a second composite heat-insulating material 210, the first composite heat-insulating material 200 and the second composite heat-insulating material 210 are made of composite heat-insulating materials similar to hollow fibers and adhesives or foam cotton, the composite heat-insulating materials are in high thermal resistance and elastic bonding and fixing with a metal frame structure 300 to achieve the purposes of heat preservation and vibration isolation, a liquid crystal glass plate 120 and a front protective glass 110 in the display module 100 are bonded and fixed by optical bonding glue 130 to improve rigidity, the side wall of the liquid crystal glass plate 120 is connected with the metal frame 150 through bonding filling materials 160, laminated partition plates and bonding glue 170, the side wall of a backlight assembly 140 is connected with the metal frame 150, the bonding filling materials 160 are bonding filling materials similar to silica gel and with poor elasticity, when the first composite heat-insulating material 200 and the second composite heat-insulating material 210 are connected with the metal frame structure 300, the method adopts materials containing aerogel fibers or hollow ceramic microspheres or hollow glass microspheres and foaming bonding sizing materials thereof, or directly adopts hollow breathable silica gel foam, the thickness of the materials is more than two millimeters, the first-order resonance frequency of a reinforced liquid crystal display which is fixedly installed is ensured to be less than fifty Hz by selecting the first composite heat insulation material 200 and the second composite heat insulation material 210 with different hardness, rigidity, thickness and contact area, the exterior of the display module 100 is only required to be firmly adhered by adopting sheet-shaped or film-shaped heat insulation materials, the heat insulation effect is realized, light, thin and high heat resistance are required, the vibration characteristic is not considered, the parts of the backlight assembly 140 of the liquid crystal display module, such as an LED backlight bar, a liquid crystal driving COG or a COF chip, the parts are not coated with heat insulation materials, special heat dissipation measures are also required, such as adopting a flexible graphite film to adhere, one end of the backlight assembly is adhered to the LED bar or the chip, one end is bonded on the external metal shell, the heat is led out, the flexible heat conduction material such as a graphite film can transfer the heat and does not transfer the vibration stress, the efficient heat preservation and vibration isolation performance of the liquid crystal display is realized, the heating power of the liquid crystal display in a low-temperature environment can be effectively reduced, the problem that the vibration of the liquid crystal display, such as yellow spots, white spots, black spots and the like, affects the display quality in a strong vibration environment is solved, and the use work of the liquid crystal display is completed.
Claims (6)
1. A reinforced liquid crystal display with a heat-preservation and vibration-isolation structure is characterized in that: including metal frame construction (300), the inside of metal frame construction (300) is equipped with first composite insulation material (200), and the outer wall and the metal frame construction (300) fixed connection of first composite insulation material (200), the inside second composite insulation material (210) that is equipped with of metal frame construction (300) of first composite insulation material (200) one side, the inside display module (100) that is equipped with of metal frame construction (300) of second composite insulation material (210) top, and the outer wall and first composite insulation material (200) fixed connection of display module (100), protection glass (110) before the inside of display module (100) is equipped with, the inside liquid crystal glazing board (120) that is equipped with of display module (100) below preceding protection glass (110).
2. The reinforced liquid crystal display with the thermal insulation and vibration isolation structure as set forth in claim 1, wherein: an optical bonding glue (130) is arranged on one side, close to the front protective glass (110), of the liquid crystal glass plate (120), one side of the optical bonding glue (130) is fixedly connected with the liquid crystal glass plate (120), and the other side of the optical bonding glue (130) is fixedly connected with the front protective glass (110).
3. The reinforced liquid crystal display with the thermal insulation and vibration isolation structure as set forth in claim 1, wherein: a backlight assembly (140) is arranged inside the display module (100) on one side of the liquid crystal glass plate (120), and the outer wall of the backlight assembly (140) is connected with the display module (100).
4. The reinforced liquid crystal display with the thermal insulation and vibration isolation structure as set forth in claim 3, wherein: the bottom end of the liquid crystal glass plate (120) above the backlight component (140) is provided with a bonding filling material (160), and the top end of the bonding filling material (160) is connected with the liquid crystal glass plate (120).
5. The reinforced liquid crystal display with the thermal insulation and vibration isolation structure as set forth in claim 4, wherein: the bottom end of the bonding filling material (160) is provided with a laminated clapboard and bonding glue (170), the top ends of the laminated clapboard and the bonding glue (170) are connected with the bonding filling material (160), and the bottom ends of the laminated clapboard and the bonding glue (170) are connected with the backlight assembly (140).
6. The reinforced liquid crystal display with the thermal insulation and vibration isolation structure as set forth in claim 1, wherein: the display module (100) is internally provided with a metal frame (150), and the outer wall of the metal frame (150) is connected with a bonding filling material (160), a laminated partition plate and bonding glue (170).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122281336.8U CN215813637U (en) | 2021-09-22 | 2021-09-22 | Reinforced liquid crystal display with heat-insulation and vibration-isolation structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122281336.8U CN215813637U (en) | 2021-09-22 | 2021-09-22 | Reinforced liquid crystal display with heat-insulation and vibration-isolation structure |
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| CN215813637U true CN215813637U (en) | 2022-02-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115421332A (en) * | 2022-09-05 | 2022-12-02 | 中国电子科技集团公司第五十五研究所 | Vibration-resistant and high-low temperature-resistant reinforced display backlight assembly |
| CN116085426A (en) * | 2023-03-22 | 2023-05-09 | 南京惠华电子技术有限公司 | Vibration isolation type reinforced liquid crystal display |
-
2021
- 2021-09-22 CN CN202122281336.8U patent/CN215813637U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115421332A (en) * | 2022-09-05 | 2022-12-02 | 中国电子科技集团公司第五十五研究所 | Vibration-resistant and high-low temperature-resistant reinforced display backlight assembly |
| CN116085426A (en) * | 2023-03-22 | 2023-05-09 | 南京惠华电子技术有限公司 | Vibration isolation type reinforced liquid crystal display |
| CN116085426B (en) * | 2023-03-22 | 2023-06-16 | 南京惠华电子技术有限公司 | Vibration isolation type reinforced liquid crystal display |
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